Oxygen production on the Lunar materials processing frontier

During the pre-conceptual design phase of an initial lunar oxygen processing facility, it is essential to identify and compare the available processes and evaluate them in order to ensure the success of such an endeavor. The focus of this paper is to provide an overview of materials processing to produce lunar oxygen as one part of a given scenario of a developing lunar occupation. More than twenty-five techniques to produce oxygen from lunar materials have been identified. While it is important to continue research on any feasible method, not all methods can be implemented at the initial lunar facility. Hence, it is necessary during the pre-conceptual design phase to evaluate all methods and determine the leading processes for initial focus. Researchers have developed techniques for evaluating the numerous proposed methods in order to suggest which processes would be best to go to the Moon first. As one section in this paper, the recent evaluation procedures that have been presented in the literature are compared and contrasted. In general, the production methods for lunar oxygen fall into four categories: thermochemical, reactive solvent, pyrolytic, and electrochemical. Examples from two of the four categories are described, operating characteristics are contrasted, and terrestrial analogs are presented when possible. In addition to producing oxygen for use as a propellant and for life support, valuable co-products can be derived from some of the processes. This information is also highlighted in the description of a given process

PROGRAMS ADDRESSING CONSUMER CONCERNS FROM THE OHIO STATE UNIVERSITY

Consumer/Household Economics,

Herculin, a Fourth Member of the MyoD Family of Myogenic Regulatory Genes

We have identified and cloned herculin, a fourth mouse muscle regulatory gene. Comparison of its DNA and deduced amino acid sequences with those of the three known myogenic genes (MyoD, myogenin, and Myf-5) reveals scattered short spans with similarity to one or more of these genes and a long span with strong similarity to all three. This long span includes a sequence motif that is also present in proteins of the myc, achaete-scute, and immunoglobulin enhancer-binding families. The herculin gene is physically linked to the Myf-5 gene on the chromosome; only 8.5 kilobases separate their translational start sites. A putative 27-kDa protein is encoded by three exons contained within a 1.7-kilobase fragment of the herculin gene. When expressed under the control of the simian virus 40 early promoter, transfected herculin renders murine NIH 3T3 and C3H/10T1/2 fibroblasts myogenic. In doing so, it also activates expression of myogenin, MyoD, and endogenous herculin in NIH 3T3 recipients. In adult mice, herculin is expressed in skeletal muscle but is absent from smooth muscle, cardiac muscle, and all nonmuscle tissues assayed. Direct comparison of the four known myogenic regulators in adult muscle showed that herculin is expressed at a significantly higher level than is any of the others. This quantitative dominance suggests an important role in the establishment or maintenance of adult skeletal muscle

Redemption from the Inside-Out: The Power of Faith-Based Programming

Prisons are tense, cheerless, and often degrading places in which all inmates struggle to maintain their equilibrium despite violence, exploitation, lack of privacy, stringent limitations on family and community contacts, and a paucity of opportunities for meaningful education, work, or other productive activities. As a general matter, prisoners come to see prison as their home and try to make the most of the limited resources available in prison; they establish daily routines that allow them to find meaning and purpose in their prison lives, lives that might otherwise seem empty and hopeless. The resilience shown by prisoners should not be construed as an argument for more or longer prison sentences or for more punitive regimes of confinement, but rather is a reminder that human beings can find meaning in adversity. Prisons are meant to be settings of adversity but should strive to accommodate the human needs of their inhabitants and to promote constructive changes in behavior. Here, there are programmatic offerings that may provide prisoners with the hope, skills, and empowerment necessary to overcome barriers to achievement and success as human beings in any social context. A current line of inquiry has focused on faith based prison programs and the potential benefits that a deepened spiritual life might have on coping with the doing time experience, changing old lifestyles, and reducing the likelihood of people returning to prison. These points will be explored throughout this chapter

A one-dimensional model with water-like anomalies and two phase transitions

We investigate a one-dimensional model that shows several properties of water. The model combines the long-range attraction of the van der Waals model with the nearest-neighbor interaction potential by Ben-Naim, which is a step potential that includes a hard core and a potential well. Starting from the analytical expression for the partition function, we determine numerically the Gibbs energy and other thermodynamic quantities. The model shows two phase transitions, which can be interpreted as the liquid-gas transition and a transition between a high-density and a low-density liquid. At zero temperature, the low-density liquid goes into the crystalline phase. Furthermore, we find several anomalies that are considered characteristic for water. We explore a wide range of pressure and temperature values and the dependence of the results on the depth and width of the potential well

Accounting for financial futures

Futures ; Banks and banking - Accounting ; Financial Accounting Standards Board

IMPACTS OF MAPLE SYRUP GRADING LAWS ON THE MAPLE PRODUCING REGIONS OF UNITED STATES AND CANADA

Agricultural and Food Policy,